Aquatic plant compositing technology used for reclaimed water and landscape waterbody eco-remediation

A technology for aquatic plants and ecological restoration, applied in biological water/sewage treatment, sustainable biological treatment, water/sludge/sewage treatment, etc., can solve the problem of high nitrogen and phosphorus indicators, excessive algae reproduction, and surrounding areas that affect the landscape function of water bodies Environmental regulation and other issues

Active Publication Date: 2012-02-01
国家城市给水排水工程技术研究中心 +1
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] When using reclaimed water to build artificial water bodies or supplement natural water bodies, due to the differences in the quality of reclaimed water and natural water bodies in terms of organic matter and inorganic nutrient content, a large degree of adjustment is required in terms of implementation and water management. The biggest problem may be reclaimed water. Nitrogen and phosphorus indicators in the effluent are high, supplementing the urban landscape water body to form a rich accumulation of nutrients, which promotes the overgrowth of algae and is easy to form algal blooms, which seriously affects the landscape function of the water body and the regulation of the surrounding environment

Method used

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  • Aquatic plant compositing technology used for reclaimed water and landscape waterbody eco-remediation
  • Aquatic plant compositing technology used for reclaimed water and landscape waterbody eco-remediation
  • Aquatic plant compositing technology used for reclaimed water and landscape waterbody eco-remediation

Examples

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Effect test

Embodiment 1

[0029] Embodiment 1: small pond ecological purification test

[0030] This embodiment is to carry out ecological purification and algae inhibition test in a small pond with reclaimed water as supplementary water source. Pond water surface area 200m 2 , with an average water depth of 60cm.

[0031] (1) Analyze and summarize the hydrological parameters and water quality characteristics of small ponds

[0032] (2) Fabricate and install 8 reactors with an effective volume of 160L and a water depth of 50cm. The reactor is filled with regenerated water and inoculated with certain density of algae. 7 kinds of emergent plants and 6 kinds of submerged plants were selected for the test, planted as a single plant, and 1 reactor was used as blank. Plant in April and the algae reaches its peak growth in October. According to the test data, iris, canna, chrysanthemum, celery, and water onion were selected as the pioneer emergent plants, and water lilies were selected as the pioneer flo...

Embodiment 2

[0039] Example 2: Ecological purification of water body in Fuzhuang, Hefei

[0040] Hefei Fuzhuang water body is a part of the water system around the city of Hefei Huancheng Park. Recycled water is used as the only natural water body to supplement the water source, with a water surface area of ​​600m 2 , with an average water depth of 150cm.

[0041] (1) Analyze and summarize the hydrological parameters and water quality characteristics of Hefei Fuzhuang

[0042] (2) Fabricate and install 8 reactors with an effective volume of 160L and a water depth of 50cm. The reactor is filled with reclaimed water of the same quality as Hefei Fuzhuang water, and inoculated with certain density of algae species. 7 kinds of emergent plants and 6 kinds of submerged plants were selected for the test, planted as a single plant, and 1 reactor was used as blank. Plant in April and the algae reaches its peak growth in October. According to the test data, we choose Xanthophyllum, Iris and Canna...

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Abstract

The invention discloses aquatic plant compositing technology used for reclaimed water and landscape waterbody eco-remediation. In the method, native aquatic pioneer plants for inhibiting algae and reducing nutrients in the water environment suitable for reclaimed water serving as a supplementing source are optimized and subjected to compositing and optimized allocation, so the constructed aquaticplant growth environment supplement the water environment each other. By analyzing water quality characteristics of the reclaimed water and the water environment and basic conditions such as waterbody area, shape, depth, temperature change and base, native submerged plants, floating plants and emergent aquatic plants are selected according to plant characteristics, ecological niche cross and ornamentation, and are allocated and composited; the planting areas of the plants and the planting types of the plants are controlled; and the plants ecologically purify the water environment taking the reclaimed water as the supplementing source deeply and inhibit pioneer algae causing eutrophication so as to achieve the effects of reducing the content of nutrients such as N and P in the water environment, and delaying and preventing the burst of the eutrophication in the water environment.

Description

technical field [0001] The invention belongs to the field of water environment restoration and the field of comprehensive utilization of regenerated water, and in particular relates to a water quality improvement technology and a three-dimensional composite method of aquatic plants suitable for reclaimed water as a supplementary water source for landscape water bodies. Background technique [0002] Water is the most dynamic and active factor in the ecological environment. In the construction of urban infrastructure, urban water bodies have important urban ecological functions, and are important places for urban cultural and natural landscape elements and leisure and entertainment, and have a vital impact on urban economic development and the improvement of people's living standards. [0003] As our country gradually enters into a well-off society, people's requirements for the quality of living environment continue to increase, especially in southern my country and other pla...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/32
CPCY02W10/10
Inventor 朱开东尚巍黄鹏李金河
Owner 国家城市给水排水工程技术研究中心
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